WxHaskell

wxHaskell is a portable and native graphical user interface library for the programming language Haskell, built on wxWidgets. It is often used by those wanting to develop a graphical user interface with a functional programming language.

Applications

High-level GUI libraries built on it

wxHaskell is a middle-level GUI library. Several experimental high-level GUI library approaches are implemented on wxHaskell:
In contrast, the high-level GUI libraries and are implemented on the middle-level Gtk2Hs, which is based on GTK2.
All of these high-level libraries are experimental, using advanced mathematics concepts in their approach.